July/August 2021 - 70

will be made available for addition to the current manual -
the revised third edition will also be updated to include this
language:
Regarding Section 3.4.7 of the Augured Cast-In-Place Pile
Manual, it is noted that interruptions in grout pumping require relowering
of the auger to a depth of at least 5-ft below the level of the
interruption. Limited access ACIP piles, where auger sections are
added as drilling proceeds and then removed during the grouting
phase, have project-specific installation procedures that include
planned grouting pauses while auger sections are removed as the tool
is withdrawn. The grouting procedures for these piles should include
provisions for these planned pauses which consider local subsurface
conditions, proposed auger section lengths, and estimated time to
remove auger sections. The provisions may include (for example) the
pumping of greater quantities of grout per unit length of withdrawal
or building of grout head above what might be required where
unlimited access is available. These planned pauses are not considered
" interruptions " as used in Section 3.4.7 and do not require re-lowering
of the auger after each planned pause.
Committee and Working Group Meetings at DFI46
Plan to attend the technical committee and working group
meetings being held on Tuesday, October 12, during DFI's 46th
Annual Conference on Deep Foundations in Las Vegas. The
meetings are an opportunity to get involved with the groups
that are the backbone of DFI. Committees and working groups
keep members and the industry up to date with the state of
practice through publications, guidance documents, peer
review of papers, educational events and research funded by
the DFI Committee Project Fund.
DFI 46th Annual Conference on Deep Foundations Technical Committee and Working Group Meetings*
Time (PT)
Rooms 350 + 351
7:00 AM - 8:00 AM
8:00 AM - 9:00 AM
9:00 AM - 9:15 AM
9:15 AM - 10:15 AM
10:15 AM - 10:30 AM
10:30 AM - 11:30 AM
11:30 AM - 12:30 PM
12:30 PM - 1:30 PM
1:30 PM - 1:45 PM
1:45 PM - 2:45 PM
2:45 PM - 3:00 PM
3:00 PM - 4:00 PM
4:00 PM - 4:15 PM
4:15 PM - 5:15 PM
5:15 PM - 5:30 PM
5:30 PM - 6:30 PM
Joint ADSC-DFI Anchored
Earth Retention
Room 352
Breakfast
Sustainability
Break
Joint ADSC-DFI
Micropiles
Ground
Improvement
Break
Women in
Deep Foundations
Tunneling and
Underground
Deep Foundations for Landslides
and Slope Stabilization
Lunch and Technical Committee Workshop
Drilled Shafts
Seepage
Control
Break
Platforms Working Group
Industry Wide Working
International Grouting
Subsurface Characterization for
Deep Foundations
Break
Augered Cast-in-Place and
Drilled Displacement Piles
Project Information
Management Systems
Break
Helical Piles
and Tiebacks
Slurry Walls
Break
DFI Leadership Meeting (Trustees and Chairs)
* Subject to change
Energy
Foundations
Seismic and
Lateral Loads
Codes and Standards
Manufacturers, Suppliers,
Service Providers
Electric Power System
Foundations
Driven Piles
DFI Risk and Contracts
Testing and
Evaluation
Geo-Industry Wide Risk
Working Group
Marine
Foundations
Soil Mixing
Room 353
Room 354
70 * DEEP FOUNDATIONS * JULY/AUG 2021
July/August 2021

Table of Contents for the Digital Edition of July/August 2021
